The Duppy is an evil spirit or ghost that originated in Jamaican folktales and made its way to Barbados. It often appears in the form of a dog barking or howling through the night. Another folktale says that Duppies live in the buttress roots of silk cotton trees.

My NickName Is Duppy Because Im White, In A "Multi-Cultrual" School, But I Act Black.

originating from jamaican folklore, it is slang for a ghost or spirit, but nowadays is used as slang to hit someone or beat someone up, or take them for a complete derkhead. duppy is degenerately used by black people who are looking for a fight or little white kids who want to or think that they are the black gangsters....eg